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Consuelo Kanaga -
Public Domain
Perry, William Stevens - Public Domain
Dick Thomas Johnson - CC BY 2.0
Jarek Obważanek, WRAK.PL -
N. Freese (active 1794-1814) - Public Domain
unknown - Public Domain
photographer: R. Falkner - Public Domain
Anthony22 -
US Government Printing Office - Public Domain
United States War Department - Public Domain
Henry Chase - Public Domain
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Consuelo Kanaga -
Rothko, Mark, 1903-1970
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Cabral, Pedro Alvares, -1520?
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Perkins, Charles C. (Charles Callahan), 1823-1886
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Beresford, Marcus Gervais, 1801-1885
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Public Domain
Ward, Barbara, 1914-1981
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Perry, William Stevens - Public Domain
Wilmer, Joseph Pere Bell, 1812-1878
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Hegar, Friedrich, 1841-1927
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Dick Thomas Johnson - CC BY 2.0
Konishi, Manami, 1978-
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Jarek Obważanek, WRAK.PL -
Rosiński, Grzegorz
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N. Freese (active 1794-1814) - Public Domain
Spode, Josiah, 1733-1797
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George, of Trebizond, 1396-1486
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Cory, William Johnson, 1823-1892
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unknown - Public Domain
Bouthillier, Claude, , 1581-1652
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Field, Walter
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Brisson, Mathurin-Jacques, 1723-1806
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Public Domain
Berwind, Edward J. (Edward Julius), 1848-1936
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photographer: R. Falkner - Public Domain
Newton, Alfred, 1829-1907
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Petrarca, Francesco, 1304-1374
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unknown - Public Domain
Gabriel, Virginia, 1825-1877
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Anthony22 -
Ludington, Sybil, 1761-
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Prado, Jorge del
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US Government Printing Office - Public Domain
Edwards, Don, 1915-
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Spence, W. G. (William Guthrie), 1846-1926
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United States War Department - Public Domain
Frissell, Toni, 1907-1988
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Hains, T. Jenkins (Thornton Jenkins), 1866-
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Nevius, John L. (John Livingston), 1829-1893
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unknown - Public Domain
Wilberforce, Robert Isaac, 1802-1857
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Mörike, Eduard, 1804-1875
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MacGill, Patrick, 1890-1963
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Henry Chase - Public Domain
Robie, Frederick, 1822-1912